| Electronics > Beginners |
| Understanding N76E003 startup file by Keil |
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| Vindhyachal.takniki:
I am working on Nuvoton N76E003 MCU & using Keil C51 for this. Keil added a startup file. I have below problem in understanding it: 1. Attached find the keil startup file. 2. The datasheet of N76 says it has 256 bytes of Idata RAM. & 756 bytes of Xdata. But startup files on line 25 says: IDATALEN EQU 80H ; the length of IDATA memory in bytes. Is it an error? 3. But line 45 says IBPSTACKTOP EQU 0FFH+1 ; set top of stack to highest location+1. where stack is defined at top of RAM i.e 256 bytes. Or this startup uses 128 bytes as RAM & fix rest of remaining top 128 bytes as stack space? |
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